Home / 288,586,459.88-398,238,641.38-156,424,618.76

Finding the Fourth Proportional to 288,586,459.88, 398,238,641.38 and 156,424,618.76

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Solution

The fourth proportional to 288,586,459.88, 398,238,641.38 and 156,424,618.76 is: 215,860,188.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,586,459.88 : 398,238,641.38 = 156,424,618.76 : x
  2. Step 2: Convert to fraction form
    288,586,459.88/398,238,641.38 = 156,424,618.76/x
  3. Step 3: Cross multiply
    288,586,459.88x = 398,238,641.38 × 156,424,618.76
  4. Step 4: Simplify right side
    288,586,459.88x = 62,294,327,653,366,856
  5. Step 5: Solve for x
    x = 62,294,327,653,366,856/288,586,459.88
  6. Step 6: Final answer
    x = 215,860,188.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.